Ọrụ Bụ isi: Ngwugwu Mkpọchi Ederede Akwụkwọ: Tralock bụ ngwugwu emere maka mkpọchi igbe njem. Igbe ahụ yiri obere igbe njem, nke jikọrọ ngwugwu ahụ ozugbo na ebumnuche ngwaahịa ahụ. Aha ahụ jikọrọ okwu "travelling" na "lock" ọnụ, ebe mkpụrụedemede o dị na akara ahịa ahụ e mere ka ọ yie oghere igodo. Ihe owuwu ahụ nwere ọtụtụ abụọ. Otu ntanite blister na-ejide mkpọchi ahụ na igodo ya n'ọnọdụ, ebe ihe mkpuchi kadibọọdụ na-ebu eserese e biri ebi. Diecut (oghere ebipụtara) na-enye onye zụrụ ya ohere ịhụ ngwaahịa ahụ dị n'ime. Agba dị mma na-egosipụta isiokwu njem ahụ ma na-enyere ngwugwu ahụ aka ịpụta ìhè.
Aha oru ngo : Tralock, Aha ndị na-emepụta ya : Bakhtiyar Baimurzayev, Aha onye ahịa : Bakhtiyar Baimurzayev.
Ihe ukwu a bu ihe nmeri nke mmeri ọla n’iru n ’ulo, ulo na mpi n’ ulo oru. Ga-ahụrịrị ihe nrịbaama nke nenweta ihe nrịba ama nke ọla kọpa iji chọpụta ọtụtụ ihe ndị ọzọ, ihe ọhụụ, ihe okike na nke okike, ụlọ na arụpụta ihe eji arụ ọrụ.
